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Kazeer [188]
3 years ago
13

Explain step-by-step how to simplify -5(2x – 3y + 6z – 10).

Mathematics
1 answer:
lukranit [14]3 years ago
8 0

Answer: -10x + 15y -30z + 50

Step-by-step explanation:

The given expression is

-5(2x – 3y + 6z – 10). It has three different variables, x, y and z.

In order to simplify this expression, we will multiply each term inside the parentheses one after the other with the term outside the parentheses. The positive and negative signs will be taken into cognisance.( - - = + , + - = - , - × - = + and - × + = -) Applying the above explanation, it becomes

-5(2x – 3y + 6z – 10).

(-5×2x) +(-5×-3y) + (-5×6z) + (-5×-10)

= -10x + 15y -30z + 50

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3 0
4 years ago
I have three times as much money as does my brother. Our combined total is $42. How much does each of us have?
nika2105 [10]
For an instance, i stands for the money that you have, and b stands for the money that brother has.
An equation system based on the problem would be
i + b = 42 (equation 1)
i = 3b (equation 2)

Use substitution method to solve the problem
substitute 3b into i in the equation 1
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4 0
3 years ago
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baherus [9]
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6 0
3 years ago
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Determine all possibilities for the solution set of a system of 2 equations in 2 unknowns. I. No solutions whatsoever. II. One a
Minchanka [31]

Answer:

II. One and only one solution

Step-by-step explanation:

Determine all possibilities for the solution set of a system of 2 equations in 2 unknowns. I. No solutions whatsoever. II. One and only one solution. III. Many solutions.

Let assume the equation is given as;

x + 3y = 11 .... 1

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Using elimination method

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<em>Hence we can say the equation has One and only one solution since we have just a value for x and y</em>

<em />

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3 years ago
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Vlad1618 [11]

Solution:

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3 0
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